On May 12, 2016, OSHA caused confusion and concern amongst employers in the preamble to 29 C.F.R. Β§ 1904.35(b)(1)(iv) reporting requirements. The preamble appeared a prohibition, at the very least discouragement, of post-incident drug testing or policies. On October 11, 2018, OSHA provided a memorandum to clarify the Departmentβs position on post-incident drug testing. In particular, OSHA advises that